128027520

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 256

約数和(自身を含む): 470016000

約数和(自身を除く): 341988480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 64, 72, 80, 90, 93, 96, 108, 120, 124, 128, 135, 144, 155, 160, 180, 186, 192, 216, 239, 240, 248, 270, 279, 288, 310, 320, 360, 372, 384, 432, 465, 478, 480, 496, 540, 558, 576, 620, 640, 717, 720, 744, 837, 864, 930, 956, 960, 992, 1080, 1116, 1152, 1195, 1240, 1395, 1434, 1440, 1488, 1674, 1728, 1860, 1912, 1920, 1984, 2151, 2160, 2232, 2390, 2480, 2790, 2868, 2880, 2976, 3348, 3456, 3585, 3720, 3824, 3968, 4185, 4302, 4320, 4464, 4780, 4960, 5580, 5736, 5760, 5952, 6453, 6696, 7170, 7409, 7440, 7648, 8370, 8604, 8640, 8928, 9560, 9920, 10755, 11160, 11472, 11904, 12906, 13392, 14340, 14818, 14880, 15296, 16740, 17208, 17280, 17856, 19120, 19840, 21510, 22227, 22320, 22944, 25812, 26784, 28680, 29636, 29760, 30592, 32265, 33480, 34416, 35712, 37045, 38240, 43020, 44454, 44640, 45888, 51624, 53568, 57360, 59272, 59520, 64530, 66681, 66960, 68832, 74090, 76480, 86040, 88908, 89280, 91776, 103248, 107136, 111135, 114720, 118544, 129060, 133362, 133920, 137664, 148180, 152960, 172080, 177816, 178560, 200043, 206496, 222270, 229440, 237088, 258120, 266724, 267840, 275328, 296360, 333405, 344160, 355632, 400086, 412992, 444540, 458880, 474176, 516240, 533448, 535680, 592720, 666810, 688320, 711264, 800172, 825984, 889080, 948352, 1000215, 1032480, 1066896, 1185440, 1333620, 1376640, 1422528, 1600344, 1778160, 2000430, 2064960, 2133792, 2370880, 2667240, 2845056, 3200688, 3556320, 4000860, 4129920, 4267584, 4741760, 5334480, 6401376, 7112640, 8001720, 8535168, 10668960, 12802752, 14225280, 16003440, 21337920, 25605504, 32006880, 42675840, 64013760, 128027520]

約数ペア:

[(1, 128027520), (2, 64013760), (3, 42675840), (4, 32006880), (5, 25605504), (6, 21337920), (8, 16003440), (9, 14225280), (10, 12802752), (12, 10668960), (15, 8535168), (16, 8001720), (18, 7112640), (20, 6401376), (24, 5334480), (27, 4741760), (30, 4267584), (31, 4129920), (32, 4000860), (36, 3556320), (40, 3200688), (45, 2845056), (48, 2667240), (54, 2370880), (60, 2133792), (62, 2064960), (64, 2000430), (72, 1778160), (80, 1600344), (90, 1422528), (93, 1376640), (96, 1333620), (108, 1185440), (120, 1066896), (124, 1032480), (128, 1000215), (135, 948352), (144, 889080), (155, 825984), (160, 800172), (180, 711264), (186, 688320), (192, 666810), (216, 592720), (239, 535680), (240, 533448), (248, 516240), (270, 474176), (279, 458880), (288, 444540), (310, 412992), (320, 400086), (360, 355632), (372, 344160), (384, 333405), (432, 296360), (465, 275328), (478, 267840), (480, 266724), (496, 258120), (540, 237088), (558, 229440), (576, 222270), (620, 206496), (640, 200043), (717, 178560), (720, 177816), (744, 172080), (837, 152960), (864, 148180), (930, 137664), (956, 133920), (960, 133362), (992, 129060), (1080, 118544), (1116, 114720), (1152, 111135), (1195, 107136), (1240, 103248), (1395, 91776), (1434, 89280), (1440, 88908), (1488, 86040), (1674, 76480), (1728, 74090), (1860, 68832), (1912, 66960), (1920, 66681), (1984, 64530), (2151, 59520), (2160, 59272), (2232, 57360), (2390, 53568), (2480, 51624), (2790, 45888), (2868, 44640), (2880, 44454), (2976, 43020), (3348, 38240), (3456, 37045), (3585, 35712), (3720, 34416), (3824, 33480), (3968, 32265), (4185, 30592), (4302, 29760), (4320, 29636), (4464, 28680), (4780, 26784), (4960, 25812), (5580, 22944), (5736, 22320), (5760, 22227), (5952, 21510), (6453, 19840), (6696, 19120), (7170, 17856), (7409, 17280), (7440, 17208), (7648, 16740), (8370, 15296), (8604, 14880), (8640, 14818), (8928, 14340), (9560, 13392), (9920, 12906), (10755, 11904), (11160, 11472)]